Patent GB-125991-A (GB)
Title: Improvements in or relating to Machines for Making Bobbins for Electric Batteries.
IPC: H01M4/10
Filed: 1919-04-23
Abstract: 125,991. National Carbon Co., (Assignees of Kipniss, A., and Neumann, M. P.). Jan. 10, 1918, [Convention date]. Feeding articles from hoppers and shoots.-In the manufacture of bobbins for electric batteries, depolarizing-material 14, Fig. 6, is compressed within a mould 9 and partly perforated by a plunger 48 furnished with a perforating-pin 49, the carbon 53 is next inserted partly into the perforation by a plunger 52. the carbon is forced completely through the cylinder 50 of depolarizing-material until flush with the top, and the bobbin is further compressed by a plunger 55, and finally the completed bobbin is discharged by a further plunger 69, Fig. 7. A machine is described in which a number of moulds 9 are mounted in a carrier 10 rotating over a fixed bottom plate 13, the plungers being carried by a cross-head 29 reciprocated by a. crank 30 on a main shaft 26. The carrier 10 is rotated intermittingly through bevel-gear from a shaft 16, Fig. 2, on which is a ratchet 18 driven by a pawl 20 carried by a lever 19 operated through a link 21 by a cam 23 on a shaft 22 connected to the shaft 26 by sprocket gearing. After each movement, the table is locked by a bar 43, Fig. 7, connected to a spring lever 44 and engaging studs 42 on the carrier. Upon descent of the crosshead 29, a lug 46 thereon engages the upper end of the lever 44 to withdraw the bar 43, which is then moved laterallv by a spring 46a; upon ascent of the cross-head, the bar 43 engages the top of the stud 42, thereby permitting the next rotary movement of the carrier. The depolarizing-material is contained in a vessel 1, Fig. 2. fitted with stirrers 3 operated from the shaft 26 through spur and bevel gear 36, 35, and passes to a smaller vessel partly covering the mould-carrier and also fitted with stirrers which are oscillated through bevel and rack gear by a rack 37 on the crosshead 29. The carbons are contained in a hopper 70 and pass through a shoot 71 to an outlet 88, Figs. 6 and 7, into an alined groove in a rocking member 74 which is carried bv a shaft 73 bored in alinement with the groove and furnished at its outer end with a pinion 78, Fig. 2, engaging a rack-bar 77 operated through a spring lever 79 by a cam on the shaft 26, whereby the member 74 is turned to bring the carbon into alinement with the plunger 52, Fig. 6. Stops 87, 92 limit the movement of the member 74, and when it is turned into alinement with the stem 52, the outlet 88 is closed by a gate 89 which is raised by a lever operated by a cam on the rack-bar 77, Fig. 2, and is depressed by the member 74. The carbons are agitated in the hopper 70 by a bar operated bv a cam on the rack-bar 77. The bottom plate 13 is cut away at 58, Figs. 6 and 7, between the positions corresponding to the plungers 55, 69, and during the operation of the plunger 55, the bobbin is supported from below by a rocking member 60 which is raised into action, against a spring, by a lever 66 operated by a cam 64 on the shaft 22. The shaft 26, Fig. 2, is operated through a one-revolution clutch, controlled by a spring lever 98 operable by a treadle 100, from a gear 96 meshing with a gear 102 on a shaft driven through belt gearing. Specification 125,382 is referred to.